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View History Bookmarks Window Help algebralab.org Sum and Difference Formulas ns MT126-58 Fall 2017 molly lawrence Homework: 7.1 Law of Sines, 7.2 Law of Cosines Score: 0 of 1 pt 20f 20 (1 complete) Solve the triangle. es -100 c- Do not round until the final answer. Then round to the nearest degree as needed.) Do not round until the final answor. Then round to the nearest tenth as needed) (Do not round until the final answer. Then round to the nearest tenth as needed.) Enter your answer in the edit fields and then click Check Answer All parts showing Clear A Let\'s Practice:

Solution

7.1.5)

A is not clearly visible. is it 58^o or 538^o

A=58^o

A+B+C=180^o

=>58^o+44^o+C=180^o

=>C=180^o-58^o-44^o

=>C=78^o

by law of sines a_/sinA=b_/sinB=c_/sinC

=>100_/sin58^o=b_/sin44^o=c_/sin78^o

=>b=100sin44^o_/sin58^o,c=100sin78^o_/sin58^o

=>b=81.9,c=115.3

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A=38^o

A+B+C=180^o

=>38^o+44^o+C=180^o

=>C=180^o-38^o-44^o

=>C=98^o

by law of sines a_/sinA=b_/sinB=c_/sinC

=>100_/sin38^o=b_/sin44^o=c_/sin98^o

=>b=100sin44^o_/sin38^o,c=100sin98^o_/sin38^o

=>b=112.8,c=160.8

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